About this productTurn Microsoft Teams into a complete phone system. This plan delivers enterprise-grade calling features, SMS, call recording and compliance tools directly inside Teams, using your active Microsoft 365 subscription — no expensive extra licensing required.Use it from a web browser or the iOS, Android and desktop apps, with automatic presence syncing so you never miss an important call. It integrates easily with your existing telephony — on-premise IP PBX, cloud PBX or SIP trunks — and lets you keep your business numbers. Calling, SMS, voicemail and conferencing all happen in Teams, so your team never has to leave their workspace.Requires a Microsoft 365 subscription with Teams access and a stable internet connection for VoIP calling.